go工具

喜欢ヅ旅行 2023-10-09 10:16 6阅读 0赞

以一个简单的例子说明一下go中比较有用的小工具

# 1. 小工具 #

## 1.1 生成一个main.go脚本 ##

jeffreyguan@localhost ~$ cat > main.go
    package main
    import "fmt"
    func main() { fmt.Println("Hello, Jeffrey Guan") }
    
    jeffreyguan@localhost ~$ cat main.go                                                                                                                  130 ↵
    package main
    import "fmt"
    func main() { fmt.Println("Hello, Jeffrey Guan") }

## 1.2. gofmt main.go ##

jeffreyguan@localhost ~$ gofmt main.go
    package main
    
    import "fmt"
    
    func main() { fmt.Println("Hello, Jeffrey Guan") }

## 1.3. gofmt -d main.go ##

jeffreyguan@localhost ~$ gofmt -d main.go
    diff -u main.go.orig main.go
    --- main.go.orig    2019-08-17 21:42:13.000000000 +0800
    +++ main.go 2019-08-17 21:42:13.000000000 +0800
    @@ -1,5 +1,5 @@
     package main
    -import "fmt"
    -func main() { fmt.Println("Hello, Jeffrey Guan") }
    
    +import "fmt"
    
    +func main() { fmt.Println("Hello, Jeffrey Guan") }

## 1.4. gofmt -w main.go ##

jeffreyguan@localhost ~$ gofmt -w main.go
    
    jeffreyguan@localhost ~$ cat main.go
    package main
    
    import "fmt"
    
    func main() { fmt.Println("Hello, Jeffrey Guan") }

## 1.5. go build ##

jeffreyguan@localhost ~$ go build main.go
    jeffreyguan@localhost ~$ file main
    main: Mach-O 64-bit executable x86_64

按平台生成可执行文件

jeffreyguan@localhost ~$ GOOS=windows go build main.go
    
    jeffreyguan@localhost ~$ file main.exe
    main.exe: PE32+ executable (console) x86-64 (stripped to external PDB), for MS Windows

## 1.6. go get ##

go get github.com/golang/example/hello

## 1.7. go list ##

jeffreyguan@localhost ~/lanjie$ cat main.go
    // demo is also demo
    package main
    
    import "fmt"
    
    func main() { fmt.Println("Hello, Jeffrey Guan") }
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { .Name }}'
    main
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { .Name }}: {
        { .Doc}}'
    main: demo is also demo
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { .Name }}: {
        { .Doc}}'
    main: demo is also demo
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { .Imports }}'
    [fmt]
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { join .Imports "\n"}}' fmt
    errors
    internal/fmtsort
    io
    math
    os
    reflect
    strconv
    sync
    unicode/utf8
    jeffreyguan@localhost ~/lanjie$ go list -f '{
        { .Doc }}' fmt
    Package fmt implements formatted I/O with functions analogous to C's printf and scanf.

## 1.8. do doc ##

jeffreyguan@localhost ~/lanjie$ go doc fmt
    jeffreyguan@localhost ~/lanjie$ go doc fmt Println
    func Println(a ...interface{}) (n int, err error)
        Println formats using the default formats for its operands and writes to
        standard output. Spaces are always added between operands and a newline is
        appended. It returns the number of bytes written and any write error
        encountered.
    
    # 在本地启动go doc
    jeffreyguan@localhost ~/lanjie$ godoc -http=localhost:6060

## 1.9 errcheck ##

## 1.10 go vet ##

## 1.11 go-wrk ##

## 1.12 go tool pprof ##

## 1.13 go-torch ##

# 2. 通过go启动web服务 #

[参考1][1]  
[参考2][2]

转载于:https://www.cnblogs.com/double12gzh/p/11370825.html

[1]: https://www.youtube.com/watch?v=uBjoTxosSys
[2]: https://github.com/campoy/go-tooling-workshop